Vintage Seeburg Microphone Pre-Amplifier and Mixer model MP3-L56 For Sale

Vintage Seeburg Microphone Pre-Amplifier and Mixer model MP3-L56 When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.


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Vintage Seeburg Microphone Pre-Amplifier and Mixer model MP3-L56 :
$43.66

Vintage Seeburg Microphone Pre-Amplifier and Mixer.
Small (6" x 6" x 6") wooden box with chrome handle containing a small tube pre-amp. Front of device has a key switch (with original key) for off, standby and on, Indicator light. Three knobs 1) phonograph volume, 2) microphone treble, 3) Microphone Volume.
Rear of device has screw terminals with marks for "shield" and "center", a threaded (approx 1/2" dia) connection (for microphone?) and 8 pin type connectors (for power?)
Tag on device lists "Seebrg Microphone Pre Amplifier & Mixer" Type MP3-L56, Serial No 1046 Volts 28, CY 50-60, Watts 40, AMP 1.1
J. P. Seeburg Corp, Chicago, U.S.A.
Unit has 6 small wood screws in the front panel - (removed to photograph the inside of the device) All tubes are present, and wiring and switching appears intact.
Unit is from the estate of a jukebox / vending machine / radio repair professional.
Unit is in "as-found" condition, and is untested and un-restored.


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